Resilient tires and wheels – Tires – resilient – Cushion
Patent
1992-03-18
1993-11-30
Stormer, Russell D.
Resilient tires and wheels
Tires, resilient
Cushion
152323, 152 7, B60C 712
Patent
active
052656594
ABSTRACT:
The relatively harsh "ride" of a non-pneumatic tire ("NPT") is greatly improved by a ring of elastomeric material referred to as a "ride-enhancing insert" ("RI"). The RI is pre-positioned on the outer surface of a wheel rim on which the NPT is to be molded of elastomeric material, most preferably a polyurethane, which is peculiarly well-suited to survive normal use on various vehicles, particularly as a replacement for a conventional spare tire, or "minispare" in an automobile. The RI is surprisingly tolerant of stress and heat loads generated by operation of the NPT/RI. The RI has a large effect on the spring rate of the NPT when deflected over a cleat, and a reduction in spring rate when deflected over a smooth laminar surface. This is of particular importance since the deflection over a cleat is where the improvement in ride is most noticeable. The degree of ride-enhancement can be tailored by choosing the size and shape of the RI, along with the physical properties of the elastomer from which it is formed.
REFERENCES:
patent: 1573391 (1926-02-01), Hibner
patent: 1666234 (1928-04-01), Cullen
patent: 4590980 (1986-05-01), Kuhn
patent: 4832098 (1989-05-01), Palinkas et al.
patent: 4921029 (1990-05-01), Palinkas et al.
Balderas-Ariza Luis G.
Pajtas Scott R.
Csontos A. A.
Lobo A. D.
Stormer Russell D.
Uniroyal Goodrich Licensing Services, Inc.
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